15 research outputs found

    Noble Gases in Lava Rock from Mount Capulin, New Mexico

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    Noble gases in lava rocks from Mount Capulin crater cone contain parentless 40Ar and xenon trapped from the hot magma. The isotopic composition of the xenon is consistent with a mixture of 90% atmospheric and 10% solar xenon, but no radiogenic 129Xe has been observed. These results do not support an earlier suggestion that radiogenic 129Xe, found in CO2 gas from this region of New Mexico, had been transported in hot magmas
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